Questions tagged as 'android'

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Download a file from Firebase Storage from Android

I am developing an application in which I want to be able to download a JSON file from a server and then be consumed on the device locally (in order to feed certain activities with information). This I do to be able to update the information...
asked by 31.05.2018 / 02:50
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Android: problem with OnClick in Floating-ArcMenu

I'm doing an app with Android Studio and I use a component called Floating-ArcMenu ( link ) that is great. The problem is the following: When I press the button the menu opens and when I press an item for the first time, the menu closes. I press...
asked by 02.06.2018 / 07:53
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Playstore Tab: How should it be mentioned that the images used by my application are freely distributed?

I was programming an emulator for the gameboy advance Red Fire pokemon, and given the nature of it, I would like to put this image as an application icon: link It is released from copyright: public domain. This can be read in your licens...
asked by 31.05.2018 / 21:51
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Firebase Android connection error

I am sending the data from my app to fire base but when I do it I get the following message: 05-30 17: 59: 57.410 2757-2757 / bolivar.andres.app.andresbolivar.com.miapplocal I / HwPointEventFilter: do not support AFT because of no config 05-3...
asked by 30.05.2018 / 23:07
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traverse jsonobjects

Nice to greet you I have this Json { "returnState":1, "returnData":{ "16777216":{ "level":"1", "cate_shop_id":"16777216", "cate_name":"\u5e97\u94fa\u4ea7\u54c1" }, "33554432":{ "level":"1", "cate_shop_id":"3355...
asked by 21.06.2018 / 18:16
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change font family of a gridview on android

hello I have a gridview on android, from which I want to change the source of its content, try with android: fontFamily="", but nothing I tried to do it through a style and neither, and through the java either, someone has an idea of how I could...
asked by 30.05.2018 / 23:04
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how to redefine the length of the keyboard in an activity. Android studio?

I have an activity in vertical orientation and when selecting an EditText to add data the cellphone keyboard appears over the whole screen, I would like to resize the keyboard on screen so that at least let me see a bit of the activity and not t...
asked by 29.05.2018 / 16:17
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android documents

I am trying to create a file from a byte [] obtained from a web service. I am using this code with volley: String nameFile = Environment.DIRECTORY_DOWNLOADS + "\" + documento.NombreFichero; FileOutputStream outputStream; outputStream...
asked by 01.06.2018 / 12:09
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Access error denied in Xamarin

I am developing an App on Xamarin.Android and I get the following error when I try to create a PDF on the device ...    System.UnauthorizedAccessException: Access to the path "/ mnt / sdcard-ext" is denied. The weird thing is that in the...
asked by 04.06.2018 / 14:20
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android "can not display PDF (name.pdf is of invalid format)"

I am downloading a document with volley and it does not allow me to open it, it shows the message    can not display PDF (name.pdf is of invalid format) Also comment that the service returns me a byte[] with a weight, and debugging...
asked by 04.06.2018 / 14:04